./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:44:32,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:44:32,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:44:32,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:44:32,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:44:32,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:44:32,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:44:32,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:44:32,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:44:32,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:44:32,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:44:32,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:44:32,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:44:32,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:44:32,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:44:32,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:44:32,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:44:32,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:44:32,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:44:32,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:44:32,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:44:32,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:44:32,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:44:32,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:44:32,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:44:32,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:44:32,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:44:32,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:44:32,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:44:32,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:44:32,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:44:32,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:44:32,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:44:32,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:44:32,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:44:32,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:44:32,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:44:32,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:44:32,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:44:32,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:44:32,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:44:32,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:44:32,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:44:32,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:44:32,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:44:32,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:44:32,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:44:32,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:44:32,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:44:32,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:44:32,663 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:44:32,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:44:32,664 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:44:32,664 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:44:32,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:44:32,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:44:32,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:44:32,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:44:32,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:44:32,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:44:32,667 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:44:32,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:44:32,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:44:32,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:44:32,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:44:32,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:44:32,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:44:32,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:44:32,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:32,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:44:32,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:44:32,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:44:32,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:44:32,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:44:32,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:44:32,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:44:32,672 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:44:32,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:44:32,672 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2022-11-25 17:44:32,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:44:33,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:44:33,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:44:33,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:44:33,041 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:44:33,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-11-25 17:44:36,250 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:44:36,519 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:44:36,534 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2022-11-25 17:44:36,560 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/data/4a424bd94/54be70e23ec74388a9732c7d1b625983/FLAG51a4a4bf8 [2022-11-25 17:44:36,576 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/data/4a424bd94/54be70e23ec74388a9732c7d1b625983 [2022-11-25 17:44:36,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:44:36,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:44:36,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:36,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:44:36,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:44:36,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:36" (1/1) ... [2022-11-25 17:44:36,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3fcb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:36, skipping insertion in model container [2022-11-25 17:44:36,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:36" (1/1) ... [2022-11-25 17:44:36,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:44:36,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:44:37,231 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2022-11-25 17:44:37,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:37,330 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:44:37,384 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2022-11-25 17:44:37,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:37,507 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:44:37,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37 WrapperNode [2022-11-25 17:44:37,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:37,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:37,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:44:37,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:44:37,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,605 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 359 [2022-11-25 17:44:37,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:37,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:44:37,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:44:37,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:44:37,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,661 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:44:37,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:44:37,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:44:37,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:44:37,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (1/1) ... [2022-11-25 17:44:37,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:37,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:37,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:44:37,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26208e35-1397-49cb-ae73-534b92293eed/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:44:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:44:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:44:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-25 17:44:37,765 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-25 17:44:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:44:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:44:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-25 17:44:37,766 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-25 17:44:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:44:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:44:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:44:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:44:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:44:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-25 17:44:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-25 17:44:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:44:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:44:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:44:37,770 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:44:37,989 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:44:37,991 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:44:38,767 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:44:38,778 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:44:38,794 INFO L300 CfgBuilder]: Removed 28 assume(true) statements. [2022-11-25 17:44:38,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:38 BoogieIcfgContainer [2022-11-25 17:44:38,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:44:38,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:44:38,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:44:38,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:44:38,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:44:36" (1/3) ... [2022-11-25 17:44:38,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6443d227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:38, skipping insertion in model container [2022-11-25 17:44:38,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:37" (2/3) ... [2022-11-25 17:44:38,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6443d227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:38, skipping insertion in model container [2022-11-25 17:44:38,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:38" (3/3) ... [2022-11-25 17:44:38,810 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2022-11-25 17:44:38,819 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:44:38,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:44:38,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-25 17:44:38,827 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:44:38,990 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-25 17:44:39,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 401 transitions, 844 flow [2022-11-25 17:44:39,542 INFO L130 PetriNetUnfolder]: 164/1253 cut-off events. [2022-11-25 17:44:39,542 INFO L131 PetriNetUnfolder]: For 36/59 co-relation queries the response was YES. [2022-11-25 17:44:39,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 1253 events. 164/1253 cut-off events. For 36/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8101 event pairs, 0 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 641. Up to 16 conditions per place. [2022-11-25 17:44:39,571 INFO L82 GeneralOperation]: Start removeDead. Operand has 363 places, 401 transitions, 844 flow [2022-11-25 17:44:39,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 363 places, 401 transitions, 844 flow [2022-11-25 17:44:39,596 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:44:39,622 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 363 places, 401 transitions, 844 flow [2022-11-25 17:44:39,631 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 363 places, 401 transitions, 844 flow [2022-11-25 17:44:39,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 401 transitions, 844 flow [2022-11-25 17:44:39,953 INFO L130 PetriNetUnfolder]: 164/1253 cut-off events. [2022-11-25 17:44:39,954 INFO L131 PetriNetUnfolder]: For 36/59 co-relation queries the response was YES. [2022-11-25 17:44:39,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 1253 events. 164/1253 cut-off events. For 36/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8101 event pairs, 0 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 641. Up to 16 conditions per place. [2022-11-25 17:44:40,033 INFO L119 LiptonReduction]: Number of co-enabled transitions 68232 [2022-11-25 17:45:45,568 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 243 DAG size of output: 241 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:45:54,286 INFO L134 LiptonReduction]: Checked pairs total: 135037 [2022-11-25 17:45:54,286 INFO L136 LiptonReduction]: Total number of compositions: 357 [2022-11-25 17:45:54,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:45:54,307 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11d16256, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:45:54,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-25 17:45:54,313 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-11-25 17:45:54,313 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:45:54,313 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:45:54,314 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 17:45:54,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-25 17:45:54,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:54,320 INFO L85 PathProgramCache]: Analyzing trace with hash 48650426, now seen corresponding path program 1 times [2022-11-25 17:45:54,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:54,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568962672] [2022-11-25 17:45:54,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:54,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:54,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:54,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:54,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568962672] [2022-11-25 17:45:54,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568962672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:54,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:45:54,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:45:54,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191552832] [2022-11-25 17:45:54,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:54,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:54,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:54,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:54,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:45:54,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 758 [2022-11-25 17:45:54,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 131 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:45:54,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:45:54,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 758 [2022-11-25 17:45:54,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:46:16,506 INFO L130 PetriNetUnfolder]: 158484/227260 cut-off events. [2022-11-25 17:46:16,506 INFO L131 PetriNetUnfolder]: For 6207/6207 co-relation queries the response was YES. [2022-11-25 17:46:16,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443001 conditions, 227260 events. 158484/227260 cut-off events. For 6207/6207 co-relation queries the response was YES. Maximal size of possible extension queue 6148. Compared 1772596 event pairs, 101022 based on Foata normal form. 24082/189402 useless extension candidates. Maximal degree in co-relation 391801. Up to 212730 conditions per place. [2022-11-25 17:46:17,840 INFO L137 encePairwiseOnDemand]: 731/758 looper letters, 96 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2022-11-25 17:46:17,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 115 transitions, 468 flow [2022-11-25 17:46:17,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:46:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:46:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1182 transitions. [2022-11-25 17:46:17,860 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5197889182058048 [2022-11-25 17:46:17,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1182 transitions. [2022-11-25 17:46:17,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1182 transitions. [2022-11-25 17:46:17,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:46:17,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1182 transitions. [2022-11-25 17:46:17,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:17,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 758.0) internal successors, (3032), 4 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:17,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 758.0) internal successors, (3032), 4 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:17,891 INFO L175 Difference]: Start difference. First operand has 103 places, 131 transitions, 304 flow. Second operand 3 states and 1182 transitions. [2022-11-25 17:46:17,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 115 transitions, 468 flow [2022-11-25 17:46:17,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 115 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:46:17,935 INFO L231 Difference]: Finished difference. Result has 104 places, 107 transitions, 264 flow [2022-11-25 17:46:17,938 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=758, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=104, PETRI_TRANSITIONS=107} [2022-11-25 17:46:17,943 INFO L288 CegarLoopForPetriNet]: 103 programPoint places, 1 predicate places. [2022-11-25 17:46:17,944 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 107 transitions, 264 flow [2022-11-25 17:46:17,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:46:17,949 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:46:17,949 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 17:46:17,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:46:17,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-25 17:46:17,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:46:17,955 INFO L85 PathProgramCache]: Analyzing trace with hash -491534736, now seen corresponding path program 1 times [2022-11-25 17:46:17,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:46:17,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092850575] [2022-11-25 17:46:17,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:46:17,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:46:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:46:18,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:46:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:46:18,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:46:18,093 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:46:18,094 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-25 17:46:18,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2022-11-25 17:46:18,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2022-11-25 17:46:18,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2022-11-25 17:46:18,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2022-11-25 17:46:18,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2022-11-25 17:46:18,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2022-11-25 17:46:18,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2022-11-25 17:46:18,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2022-11-25 17:46:18,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2022-11-25 17:46:18,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2022-11-25 17:46:18,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2022-11-25 17:46:18,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2022-11-25 17:46:18,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2022-11-25 17:46:18,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2022-11-25 17:46:18,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2022-11-25 17:46:18,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2022-11-25 17:46:18,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2022-11-25 17:46:18,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2022-11-25 17:46:18,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2022-11-25 17:46:18,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2022-11-25 17:46:18,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2022-11-25 17:46:18,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2022-11-25 17:46:18,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2022-11-25 17:46:18,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2022-11-25 17:46:18,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2022-11-25 17:46:18,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2022-11-25 17:46:18,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2022-11-25 17:46:18,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2022-11-25 17:46:18,105 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2022-11-25 17:46:18,106 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2022-11-25 17:46:18,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:46:18,106 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:46:18,109 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:46:18,109 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 17:46:18,226 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-25 17:46:18,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 566 places, 637 transitions, 1364 flow [2022-11-25 17:46:20,683 INFO L130 PetriNetUnfolder]: 1130/6634 cut-off events. [2022-11-25 17:46:20,683 INFO L131 PetriNetUnfolder]: For 602/691 co-relation queries the response was YES. [2022-11-25 17:46:20,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7308 conditions, 6634 events. 1130/6634 cut-off events. For 602/691 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 63971 event pairs, 22 based on Foata normal form. 0/5281 useless extension candidates. Maximal degree in co-relation 4064. Up to 192 conditions per place. [2022-11-25 17:46:20,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 566 places, 637 transitions, 1364 flow [2022-11-25 17:46:21,000 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 566 places, 637 transitions, 1364 flow [2022-11-25 17:46:21,001 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:46:21,001 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 566 places, 637 transitions, 1364 flow [2022-11-25 17:46:21,001 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 566 places, 637 transitions, 1364 flow [2022-11-25 17:46:21,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 566 places, 637 transitions, 1364 flow [2022-11-25 17:46:22,995 INFO L130 PetriNetUnfolder]: 1130/6634 cut-off events. [2022-11-25 17:46:22,995 INFO L131 PetriNetUnfolder]: For 602/691 co-relation queries the response was YES. [2022-11-25 17:46:23,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7308 conditions, 6634 events. 1130/6634 cut-off events. For 602/691 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 63971 event pairs, 22 based on Foata normal form. 0/5281 useless extension candidates. Maximal degree in co-relation 4064. Up to 192 conditions per place. [2022-11-25 17:46:23,987 INFO L119 LiptonReduction]: Number of co-enabled transitions 245956 [2022-11-25 17:47:09,739 WARN L233 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 243 DAG size of output: 241 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:47:12,270 INFO L134 LiptonReduction]: Checked pairs total: 492100 [2022-11-25 17:47:12,271 INFO L136 LiptonReduction]: Total number of compositions: 557 [2022-11-25 17:47:12,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:47:12,275 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11d16256, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:47:12,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-25 17:47:12,279 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2022-11-25 17:47:12,279 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:47:12,280 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:47:12,280 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:47:12,280 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-11-25 17:47:12,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:12,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1428352180, now seen corresponding path program 1 times [2022-11-25 17:47:12,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:12,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238250799] [2022-11-25 17:47:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:12,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:12,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:12,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238250799] [2022-11-25 17:47:12,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238250799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:12,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:12,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:47:12,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037614043] [2022-11-25 17:47:12,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:12,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:47:12,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:12,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:47:12,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:47:12,378 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 551 out of 1194 [2022-11-25 17:47:12,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 228 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 552.3333333333334) internal successors, (1657), 3 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:12,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:47:12,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 551 of 1194 [2022-11-25 17:47:12,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand